comprehensive annual maintenance of laptop , desktop computer peripherals , network system of alhw for the period of 01 year. , attending repair and maintenance of office computers , laptops , ups , printers , scanners , plotter , all networking systems etc . . . installed in the ce&a office . alhw , port blair . ( as per the annexure - a ) . during working hours for any unscheduled call for corrective or preventive maintenance services , taking appropriate measures / steps in time to set right the malfunctioning of the computer systems and networking systems including replacement of worm out components etc , excluding cost of spares which willl be issued by this department on free of cost as and when required based on the service call report submitted by the rsidential service engineer day to day basis . but for providing residential service engineer during all working days including cost of all taxes , minor tools and plants , transportation charges etc complete . , attending repair and maintenance of office computers , laptops , ups , printers , scanners , plotter , all networking systems etc . . . installed in the dce - andaman , project cell , and all subdivision offices under this circle ( as per the annexure - b ) . during working hours for any unscheduled call for corrective or preventive maintenance services , taking appropriate measures / steps in time to set right the malfunctioning of the computer systems . including replacement of worm out components etc . excluding cost of spares which will be issued by this department on free of cost as and when required based on the service call report submitted by the residential service engineer day to day basis . but for providing residential service engineer during all working days inclusive of all taxes , minor tools and plants , transportation charges etc complete . , scanners , plotter , all networking systems etc . . . installed in the dce - mechanical , and all subdivision offices under this circle ( as per the annexure - c ) . during working hours for any unscheduled call for corrective or preventive maintenance services , taking appropriate measures / steps in time to set right the malfunctioning of the computer systems . including replacement of worm out components etc . excluding cost of spares which will be issued by this department on free of cost as and when required based on the service call report submitted by the residential service engineer day to day basis . but for providing residential service engineer during all working days inclusive of all taxes , minor tools and plants , transportation charges etc complete .